I am searching for Joseph Koller (b. about 1888), m. Mary Pemiskern (b. abt 1892), and lived in Wisconsin.According to the 1930 census, Joseph was from Yugoslovia.
His children were as follows:
Frank Koller, b 1912 Otto Koller, b. 11/5/1914, d. 9/1983 (SSDI) Elsie Koller, b. 1917 Joseph R. Koller, b. 1918 (might have been in Air Corps) Walter Koller, b. 1919 Albert Koller, b. 1922 Emil Koller, Sr., b. 7/9/1924
I believe all children were born in Appleton, Outagamie County, Wisconsin.They all show up on the 1930 census in that area, but I have a note that Emil was born in Black Creek, Outagamie County, Wisconsin.